<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>按钮</title>
  <link rel="stylesheet" href="./css/button.css">

</head>

<body>

  <a href="#">
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    <span></span>
    <span></span>
    <span></span>
    按钮1
  </a>
  <a href="#">
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    按钮2
  </a>
  <a href="#">
    <span></span>
    <span></span>
    <span></span>
    <span></span>
    按钮3
  </a>






</body>

</html>